IN MATH: 1. n. the function, or rule which produces the "greatest integer less than or equal to the number" operated upon, symbol [x] or sometimes [[x]].
The greatest integer function is a piece-wise defined function.
Examples: number | the greatest integer less than or equal to the number x | [x] 4 |  = 4 4.4 | [4.4] = 4 -2 | [-2] = -2 -2.3 | [-2.3] = -3
IN ENGLISH: 1. as defined above.
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